It's still impressive. Jets fly at 35,000 feet, so her balloon went 3 times higher than a jet. I want to do this. Anyone have a link to a set of instructions?

It's still impressive. Jets fly at 35,000 feet, so her balloon went 3 times higher than a jet. I want to do this. Anyone have a link to a set of instructions? It looked like she was following some printed instructions in the video.